GSI Forum: Monte Carlo Engines » Group velocity for Cherenkov photon propagation in G3/G4

Home » PANDA » PandaRoot » Monte Carlo Engines » Group velocity for Cherenkov photon propagation in G3/G4

Show: Today's Messages :: Polls :: Message Navigator

Re: Group velocity for Cherenkov photon propagation in G3/G4 [message #11475 is a reply to message #11457]

Fri, 28 January 2011 19:14

Jochen Schwiening
Messages: 85
Registered: June 2009
Location: GSI, Darmstadt

continuous participant

From: *gsi.de

Hi Oliver,

thanks for the check.
Are you plotting the average velocity per wavelength bin or the
velocity for each photon? In the events that I looked at the
velocity is almost correct on average but there is a huge spread.
Would it be possible for you to plot the velocity per photon
vs. the photon wavelength from your sample, similar to the
scatter plots I have?
I checked the material properties table for FusedSil in the
current official media_pnd.geo and it looks OK. The binning
could be finer and I applied a table with the equivalent of
the 1nm binning you recommended. The spread of v_group for a
given wavelength remains the same, as you can see in the
attached plot for the finely binned FusedSil.

Cheers,
Jochen

index.php?t=getfile&id=6300&private=0

Attachment: pandaroot_geant_v_vs_lambda_new_files.png
(Size: 63.32KB, Downloaded 618 times)

Report message to a moderator

[Message index]

		Group velocity for Cherenkov photon propagation in G3/G4 By: Jochen Schwiening on Wed, 26 January 2011 11:46
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: StefanoSpataro on Wed, 26 January 2011 12:41
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Jochen Schwiening on Wed, 26 January 2011 14:12
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: StefanoSpataro on Wed, 26 January 2011 14:37
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Mohammad Al-Turany on Wed, 26 January 2011 14:53
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Jochen Schwiening on Wed, 26 January 2011 17:41
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Jochen Schwiening on Thu, 27 January 2011 11:33
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Oliver Merle on Fri, 28 January 2011 19:04
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Mohammad Al-Turany on Wed, 26 January 2011 21:23
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Jochen Schwiening on Fri, 28 January 2011 19:14
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Oliver Merle on Fri, 28 January 2011 19:39
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Jochen Schwiening on Fri, 28 January 2011 21:33
		Re: Group velocity for Cherenkov photon propagation in G3/G4 By: Jochen Schwiening on Mon, 11 April 2011 15:25

Previous Topic:	future of GEANT
Next Topic:	[Solved]Problem with PndEvtGenDirect

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Thu Nov 28 05:25:59 CET 2024

Total time taken to generate the page: 0.00757 seconds